{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-89785",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.766Z",
        "datePublished": "2026-09-16T08:48:23.084Z",
        "dateUpdated": "2026-10-19T08:52:38.323Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:52:38.323Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: fix out-of-bounds read of INDEX_ROOT in reparse/objid init\n\nntfs_reparse_init() and ntfs_objid_init() parse the index root of the\n$Extend/$Reparse and $Extend/$ObjId metafiles (the INDEX_ROOT attributes\nnamed $R and $O). They read its type and rule fields through\nresident_data(), which does not check that the resident attribute is\nlarge enough to hold them.\n\nmi_enum_attr() accepts a resident attribute with data_off == asize and\ndata_size == 0. For such an attribute placed last in its MFT record,\nresident_data() returns a pointer to the end of the record_size buffer,\nso reading root->type / root->rule reads past the allocation.\n\nUse resident_data_ex(attr, sizeof(struct INDEX_ROOT)) and bail out when\nit returns NULL, as ntfs_security_init() already does for $SDH / $SII.\n\nThe attribute is only parsed while mounting a crafted image, so this\nneeds CAP_SYS_ADMIN.\n\n BUG: KASAN: slab-out-of-bounds in ntfs_reparse_init (fs/ntfs3/fsntfs.c:2306)\n Read of size 4 at addr ffff88801219dc00 by task mount\n  ntfs_reparse_init (fs/ntfs3/fsntfs.c:2306)\n  ntfs_fill_super (fs/ntfs3/super.c:1604)\n  get_tree_bdev_flags (fs/super.c:1703)\n  vfs_get_tree (fs/super.c:1758)\n  path_mount (fs/namespace.c:4131)\n  __x64_sys_mount (fs/namespace.c:4360)"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ntfs3/fsntfs.c"
                    ],
                    "versions": [
                        {
                            "version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
                            "lessThan": "eb80003744e32a7366a523015e4acfe0a2ac7d88",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
                            "lessThan": "bd631e2005290a55c8edda87363bc0d594c01705",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
                            "lessThan": "94fce1d3e74fe011e21f17490ba58491709fd7e5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
                            "lessThan": "66c074eab6f966fbe48a0fc4b3a45b2a2e2df527",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
                            "lessThan": "64bb6000bfbdf241a6dd578199acd90321a4243e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
                            "lessThan": "72caafbc95c5dca8266a942b8e96ad81d8d9adc7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
                            "lessThan": "2064bc663f89e61b8681c1fb9d1ce445de72063d",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ntfs3/fsntfs.c"
                    ],
                    "versions": [
                        {
                            "version": "5.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "5.15.221"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.1.188"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.6.157"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/eb80003744e32a7366a523015e4acfe0a2ac7d88"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bd631e2005290a55c8edda87363bc0d594c01705"
                },
                {
                    "url": "https://git.kernel.org/stable/c/94fce1d3e74fe011e21f17490ba58491709fd7e5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/66c074eab6f966fbe48a0fc4b3a45b2a2e2df527"
                },
                {
                    "url": "https://git.kernel.org/stable/c/64bb6000bfbdf241a6dd578199acd90321a4243e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/72caafbc95c5dca8266a942b8e96ad81d8d9adc7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2064bc663f89e61b8681c1fb9d1ce445de72063d"
                }
            ],
            "title": "fs/ntfs3: fix out-of-bounds read of INDEX_ROOT in reparse/objid init",
            "x_generator": {
                "engine": "bippy-1.2.0"
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    }
}